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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents

ID: 543535.0, MPI für Physik / MPI für Physik
Search for solar axion emission from 7Li and D(p,gamma)3He nuclear decays with the CAST gamma-ray calorimeter
Authors:Andriamonje, S.; Aune, S.; Autiero, D.; Barth, K.; Belov, A.; Beltran, B.; Brauninger, H.; Carmona, J. M.; Cebrian, S.; Collar, J. I.; Dafni, T.; Davenport, M.; Lella, L. Di.; Eleftheriadis, C.; Englhauser, J.; Fanourakis, G.; Ribas, E. Ferrer.; Fischer, H.; Franz, J.; Friedrich, P.; Geralis, T.; Giomataris, I.; Gninenko, S.; Gomez, H.; Hasinoff, M.; Heinsius, F. H.; Hoffmann, D. H. H.; Irastorza, I. G.; Jacoby, J.; Jakovcic, K.; Kang, D.; Konigsmann, K.; Kotthaus, R.; Krcmar, M.; Kousouris, K.; Kuster, M.; Lakic, B.; Lasseur, C.; Liolios, A.; Ljubicic, A.; Lutz, G.; Luzon, G.; Miller, D. W.; Morales, J.; Ortiz, A.; Papaevangelou, T.; Placci, A.; Raffelt, G.; Riege, H.; Rodriguez, A.; Ruz, J.; Savvidis, I.; Semertzidis, Y.; Serpico, P.; Stewart, L.; Vieira, J. D.; Villar, J.; Vogel, J.; Walckiers, L.; Zioutas, K.
Date of Publication (YYYY-MM-DD):2010
Title of Journal:Journal of Cosmology and Astroparticle Physics
Journal Abbrev.:JCAP
Issue / Number:1003
Start Page:032
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:We present the results of a search for a high-energy axion emission signal from 7Li (0.478 MeV) and D(p,gamma)3He (5.5 MeV) nuclear transitions using a low-background gamma-ray calorimeter during Phase I of the CAST experiment. These so-called "hadronic axions" could provide a solution to the long-standing strong-CP problem and can be emitted from the solar core from nuclear M1 transitions. This is the first such search for high-energy pseudoscalar bosons with couplings to nucleons conducted using a helioscope approach. No excess signal above background was found.
Classification / Thesaurus:CAST
Comment of the Author/Creator:20 pages, 8 figures, final version to be published in JCAP
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
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